The highest day temperature in May 2025 was 88°F. The lowest night temperature was 73°F. The average values for day and night temperatures during May were 83.7°F и 80.6°F respectivly.

The average sea surface temperature in May 2025 for South Padre Island was 83.3°F. The maximum and minimum values were 81.0°F and 86.8°F respectively.

Most of the days in May are cloudy but you can also expect sunny or gloomy days.

Precipitation total in May for South Padre Island is 0.9 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 13.7 mph. It makes May one of the most windy months of the year for South Padre Island.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for South Padre Island in May is 7.0 hours.